Proportions

Proportion Equations

100

Rewrite 12 to 5 in 2 different ways.

12/5 12:5

200

Write 12 miles per 2 hours as a proportion in two different ways.

6/1  6:1

300

What is the ratio of "K"s to "T"s? K K K K T T T T T T T

4 to 7

400

Find X.

18/24 = x/68

36

500

Complete this chart. 4 l 12 l X l 28 __l_ _ l____l___ 7 l Y l 35 l Z

X = 20 Y= 21 Z = 49

Story Problems

100

Every two weeks, Ryan deposits $15 in his savings account. At this rate, how much will he deposit in 20 weeks?

$150

200

You work in a local park removing weeds. You earn $7.50 per hour. How much do you earn for working 6 hours?

45

300

There are 240 calories in 8 ounces of yogurt. If Sally ate 10 ounces of yogurt, how many calories does she eat?

300 calories

400

There are 2 grams of fiber in 0.25 cup of raisons. How many cups of raisons are needed to get 5 grams of fiber?

0.625 cups

500

A filter for an aquarium cleans 800 gallons of water in 60 minutes. How many gallons of water does the filter clean in 4 ½ minutes?

60 gallons

Best Buy and Unit Rates

100

15 pages in 5 minutes. What is the unit rate?

3 pages per minute

200

A boy can ride 9 miles in 2.5 hours. What is the unit rate?

3.6 miles per hour

300

A 12 ounce tub of popcorn costs $3.00. A 20 ounce tub of popcorn costs $4.00. Which tub is the better buy? You must tell the unit price for each.

12 oz. = 0.25 20 oz. =0.20

400

A 4 pack of AAA batteries costs $2.84. An 8 pack costs $5.60. Which is the better buy? You ust give the unit price for each.

4 pack = 0.71 8 pack = 0.70

500

A package of 2 paper rolls costs $3.50. A package of 10 paper towel rolls cost $15. Which is the better buy? You must show the unit price for each.

2 paper rolls = $1.75 10 paper rolls = $1.50

Percents

100

The scale factor on a map is 1.5 in. : 5 miles. The perimeter of the state is 27 inches on the map. What is the actual perimeter in miles?

90 miles

200

The scale of a drawing is 3mm: 7 cm. Find the unknown measure. The length of drawing is 21mm. What is the length of the object?

49 cm

300

A scale drawing of the lot Joe wants to buy has a scale factor of 1 in. to 25 ft. If the length of the lot on the drawing is 5 inches, how long is the actual lot?

125 feet

400

A model airplane uses the scale 2 inches: 15 ft. The model’s actual length is 20 inches. What is the actual length of the airplane?

150 ft.

500

In order to select new board members, the French club held an election. 61% of the 210 members of the club voted. How many members voted?

128

Conversions

100

Convert 10 inches to centimeters. (2.54 cm = 1 in)

25.4 cm

200

Convert 33.4 liters into milliliters.

33400 mL

300

A statue casts a shadow 30 feet long. At the same time, a person who is 5 feet tall casts a shadow that is 6 feet long. How tall is the statue?

25 ft.

400

Randal is 5.5 feet tall and casts an 8-foot shadow. At the same time, a flagpole casts a 48-foot shadow. How tall is the flagpole?

33 ft.

500

Jason was traveling to his grandma's house. Jason traveled 300 miles in 6 hours. What was Jason's rate in feet per minute. (1 mile = 5280 feet)

4400 feet per minute